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Evaluating airborne hyperspectral imagery for rangeland assessment in south Texas / James H. Everitt in Geocarto international, vol 19 n° 3 (September - November 2004)
[article]
Titre : Evaluating airborne hyperspectral imagery for rangeland assessment in south Texas Type de document : Article/Communication Auteurs : James H. Everitt, Auteur ; C. Yang, Auteur ; M.R. Davis, Auteur Année de publication : 2004 Article en page(s) : pp 23 - 31 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bande visible
[Termes IGN] composition colorée
[Termes IGN] ERDAS Imagine
[Termes IGN] flore locale
[Termes IGN] image hyperspectrale
[Termes IGN] occupation du sol
[Termes IGN] rayonnement proche infrarouge
[Termes IGN] réflectance spectrale
[Termes IGN] Texas (Etats-Unis)Résumé : (Auteur) Airborne hyperspectral imagery was evaluated for differentiating among rangeland ecological variables on two range sites (tight sandy loam and shallow ridge) on south Texas rangelands. Field spectroradiometric reflectance measurements made on dominant vegetation (plant species and vegetation mixtures) and soil land-use types on the two sites identified six wavelengths [five visible and one near-infrared (NIR)] where significant spectral differences occurred among the parameters. The spectral bands that corresponded to these wavelengths were extracted from the 128-band hyperspectral images obtained of each site and used to develop false color composites that were subjected to computer classifications and accuracy assessments. The bands selected for the composites included the green (498.9 nm), yellow-green (549.7 nm), orange (629.6 nm), red (651.3 nm), dark red (680.4 nm), and NIR (825.5 tim). Accuracy assessments performed on the classification maps of four false color composites of the tight sandy loam site had overall accuracies ranging from 76% to 85%; the highest accuracy was obtained from the composite made up of the NIR, red, and yellow-green bands. Accuracy assessments performed on the classification maps of three composites of the shallow ridge site had overall accuracies ranging from 74% to 77%; the highest accuracy was acquired from a composite comprised of the NIR, orange, and yellow-green bands. Overall accuracies were considered good and indicate that several band combinations can be used successfully to differentiate among, rangeland parameters in southern Texas. Key Words: remote sensing, hyperspectral imagery, reflectance, false color composite imagery, accuracy assessment. Numéro de notice : A2004-478 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040408542314 Date de publication en ligne : 02/01/2008 En ligne : https://doi.org/10.1080/10106040408542314 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26996
in Geocarto international > vol 19 n° 3 (September - November 2004) . - pp 23 - 31[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-04031 RAB Revue Centre de documentation En réserve L003 Disponible The value of cadastral surveying to efficient land administration / G. Jeffress in Surveying and land information science, vol 63 n° 4 (01/12/2003)
[article]
Titre : The value of cadastral surveying to efficient land administration Type de document : Article/Communication Auteurs : G. Jeffress, Auteur Année de publication : 2003 Article en page(s) : pp 253 - 258 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cadastre étranger
[Termes IGN] administration
[Termes IGN] cadastre étranger
[Termes IGN] droit foncier
[Termes IGN] lever cadastral
[Termes IGN] limite cadastrale
[Termes IGN] litige
[Termes IGN] Texas (Etats-Unis)Résumé : (Auteur) The value of a cadastral surveying system to efficient land administration is highlighted when disputes arise over land title and the location of land boundaries. This paper discuss two case studies in Texas which demonstrate the value cadstral surveyors create in preparing legal documentation for land and real estate and relating that documentation to the location of the property on the ground. It argued that the cadastral surveying system creates as much value in land real estate as does the legal system. Numéro de notice : A2003-378 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26458
in Surveying and land information science > vol 63 n° 4 (01/12/2003) . - pp 253 - 258[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 121-03041 SL Revue Centre de documentation Revues en salle Disponible Modeling urban population growth from remotely sensed imagery and TIGER GIS road data / F. Qiu in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 9 (September 2003)
[article]
Titre : Modeling urban population growth from remotely sensed imagery and TIGER GIS road data Type de document : Article/Communication Auteurs : F. Qiu, Auteur ; K.L. Woller, Auteur ; R. Briggs, Auteur Année de publication : 2003 Article en page(s) : pp 1031 - 1042 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse diachronique
[Termes IGN] croissance urbaine
[Termes IGN] démographie
[Termes IGN] détection de changement
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Landsat-TM
[Termes IGN] modèle mathématique
[Termes IGN] population urbaine
[Termes IGN] recensement démographique
[Termes IGN] réseau routier
[Termes IGN] Texas (Etats-Unis)Résumé : (Auteur) We modeled population growth from 1990 to 2000 in the north Dallas-Fort Worth Metroplex using two different methods: a conventional model based on remote sensing land-use change detection, and a newly devised approach using GIS-derived road development measurements. These methods were applied at both city and census-tract levels and were evaluated against the actual population growth. It was found that accurate population growth estimates are achieved by both methods. At the census-tract level, our models yielded a comparable result with that obtained from a more complex commercial demographics model. At both city and census-tract levels, models using road development were better than those using land-use change detection. In addition to being efficient in cost and time, our models provide direct visualization of the distribution of the actual population growth within cities and census tracts when compared to commercial demographic models. Numéro de notice : A2003-233 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.9.1031 En ligne : https://doi.org/10.14358/PERS.69.9.1031 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22528
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 9 (September 2003) . - pp 1031 - 1042[article]Creating a statewide digital base map: the Texas orthoimagery program / D. Decker in Surveying and land information systems, vol 57 n° 1 (March 1997)
[article]
Titre : Creating a statewide digital base map: the Texas orthoimagery program Type de document : Article/Communication Auteurs : D. Decker, Auteur ; R. Seekins, Auteur Année de publication : 1997 Article en page(s) : pp 23 - 30 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Orthophotographie, orthoimage
[Termes IGN] base de données cartographiques
[Termes IGN] grande échelle
[Termes IGN] orthophotoplan numérique
[Termes IGN] Texas (Etats-Unis)Résumé : (Documentaliste) En novembre 1994, le "Texas GIS Planning Council" a décidé le développement d'un ortho-photoplan numérique quadrilatère à partir d'images couleur infrarouge, pour alimenter une carte de base numérique à grande échelle couvrant le Texas. Le "Texas Orthoimagery Program" a débuté en septembre 1995. Les images ont été fournies par l'USGS. Cet article décrit la démarche suivie, les outils utilisés (photographies aériennes, MNE) et le déroulement de la production. Numéro de notice : A1997-089 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25944
in Surveying and land information systems > vol 57 n° 1 (March 1997) . - pp 23 - 30[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 121-97011 RAB Revue Centre de documentation En réserve L003 Disponible Utilization of Landsat multispectral data in geobotanical investigations : the location of ironstone gravel in the Sam Houston national forest, Texas / W.G. Cibula in International Journal of Remote Sensing IJRS, vol 11 n° 2 (February 1990)
[article]
Titre : Utilization of Landsat multispectral data in geobotanical investigations : the location of ironstone gravel in the Sam Houston national forest, Texas Type de document : Article/Communication Auteurs : W.G. Cibula, Auteur ; W. Lucas, Auteur Année de publication : 1990 Article en page(s) : pp 331 - 349 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Abies (genre)
[Termes IGN] analyse diachronique
[Termes IGN] Argile
[Termes IGN] classification non dirigée
[Termes IGN] fer
[Termes IGN] flore locale
[Termes IGN] forêt
[Termes IGN] image Landsat-MSS
[Termes IGN] indice de végétation
[Termes IGN] minerai
[Termes IGN] Texas (Etats-Unis)Numéro de notice : A1990-057 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431169008955024 En ligne : https://doi.org/10.1080/01431169008955024 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25475
in International Journal of Remote Sensing IJRS > vol 11 n° 2 (February 1990) . - pp 331 - 349[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-90021 RAB Revue Centre de documentation En réserve L003 Disponible Optimum band selection for supervised classification of multispectral data / P.W. Mausel in Photogrammetric Engineering & Remote Sensing, PERS, vol 56 n° 1 (january 1990)PermalinkEstimating grassland phytomass production with near-infrared and mid-infrared spectral variables / James H. Everitt in Remote sensing of environment, vol 30 n° 3 (01/12/1989)PermalinkCanopy leaf display effects on absorbed, transmitted, and reflected solar radiation / A.J. Richardson in Remote sensing of environment, vol 29 n° 1 (July 1989)PermalinkRemote sensor and other data sources for timber use-value assessment / R.D. Baker in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 6 (june 1989)PermalinkDetecting saline soils with video imagery / James H. Everitt in Photogrammetric Engineering & Remote Sensing, PERS, vol 54 n° 9 (september 1988)PermalinkEstimating soil wetness using satellite data / B.J. Choudhury in International Journal of Remote Sensing IJRS, vol 9 n° 7 (July 1988)PermalinkModelling planting configuration and canopy architecture effects on diurnal light absorption changes in cotton / A.J. Richardson in International Journal of Remote Sensing IJRS, vol 9 n° 4 (April 1988)PermalinkSurface anisotropy and hemispheric reflectance for a semiarid ecosystem / E.M. Middleton in Remote sensing of environment, vol 23 n° 2 (01/11/1987)PermalinkDrought-stress detection of buffelgrass with color-infrared aerial photography and computer-aided image processing / James H. Everitt in Photogrammetric Engineering & Remote Sensing, PERS, vol 53 n° 9 (september 1987)PermalinkRacing into tomorrow, 1985 ACSM ASPRS Fall convention / American society for photogrammetry and remote sensing (1985)Permalink